Graco Gusmer H-20 Pro Bedienungsanleitung

Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441

311392 rev.C

Operation

H-20/35 Pro™

Proportioner

For spraying polyurethane foam and polyurea coatings.

Not for use in explosive atmospheres.

See page 3 for model information, including

maximum working pressure.

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

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Contents

2311392C

Contents

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . 6

Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . 7

Component Identification . . . . . . . . . . . . . . . . . . . . 8

Initial Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Main Power Installation . . . . . . . . . . . . . . . . . . . 14

Lubrication System Set-up . . . . . . . . . . . . . . . . 15

Material Supply Connections . . . . . . . . . . . . . . . 16

Heated Hose Installation . . . . . . . . . . . . . . . . . . 16

Air Purge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Hose Power Control System . . . . . . . . . . . . . . . 19

Digital Temperature Controllers . . . . . . . . . . . . . 20

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Daily Start-up Procedure . . . . . . . . . . . . . . . . . . 21

Daily Shutdown Procedure . . . . . . . . . . . . . . . . 22

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 24

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 24

Related Manuals

For Repair instructions and parts, see manual 311393.

Models

311392C 3

Models

Part No.,

Series Model

Maximum Working

Pressure

psi (MPa, bar) Voltage Amps

Total

Heater

Watts

295500, A H20 Pro 2000 (13.8, 138) 230V, 60 Hz, 1 phase 100 12000

295501, A H20 Pro 2000 (13.8, 138) 230V, 60 Hz, 3 phase 60 12000

295502, A H20 Pro 2000 (13.8, 138) 230V, 60 Hz, 3 phase 74 18000

295503, A H20 Pro 2000 (13.8, 138) 380V, 60 Hz, 3 phase 48 12000

295504, A H20 Pro 2000 (13.8, 138) 380V, 60 Hz, 3 phase 62 18000

295505, A H20 Pro 2000 (13.8, 138) 460V, 60 Hz, 3 phase 30 12000

295506, A H20 Pro 2000 (13.8, 138) 460V, 60 Hz, 3 phase 37 18000

295507, A H25 Pro 2500 (17.2, 172) 230V, 60 Hz, 1 phase 100 12000

295508, A H25 Pro 2500 (17.2, 172) 230V, 60 Hz, 3 phase 60 12000

295509, A H25 Pro 2500 (17.2, 172) 230V, 60 Hz, 3 phase 74 18000

295510, A H25 Pro 2500 (17.2, 172) 380V, 60 Hz, 3 phase 48 12000

295511, A H25 Pro 2500 (17.2, 172) 380V, 60 Hz, 3 phase 62 18000

295512, A H25 Pro 2500 (17.2, 172) 460V, 60 Hz, 3 phase 30 12000

295513, A H25 Pro 2500 (17.2, 172) 460V, 60 Hz, 3 phase 37 18000

295514, A H35 Pro 3500 (24.0, 240) 230V, 60 Hz, 1 phase 100 12000

295515, A H35 Pro, 104 size 2800 (19.3, 193) 230V, 60 Hz, 1 phase 100 12000

295516, A H35 Pro 3500 (24.0, 240) 230V, 60 Hz, 3 phase 60 12000

295517, A H35 Pro, 104 size 2800 (19.3, 193) 230V, 60 Hz, 3 phase 60 12000

295518, A H35 Pro 3500 (24.0, 240) 230V, 60 Hz, 3 phase 74 18000

295519, A H35 Pro, 104 size 2800 (19.3, 193) 230V, 60 Hz, 3 phase 74 18000

295520, A H35 Pro 3500 (24.0, 240) 380V, 60 Hz, 3 phase 48 12000

295521, A H35 Pro 3500 (24.0, 240) 380V, 60 Hz, 3 phase 62 18000

295522, A H35 Pro 3500 (24.0, 240) 460V, 60 Hz, 3 phase 30 12000

295523, A H35 Pro 3500 (24.0, 240) 460V, 60 Hz, 3 phase 37 18000

Warnings

4311392C

Warnings

The following general warnings are for the setup, use, grounding, maintenance, and repair of this equipment. Addi-

tional, more specific warnings may be found throughout the body of this manual where applicable. Symbols appear-

ing in the body of the manual refer to these general warnings. When these symbols appear throughout the manual,

refer back to these pages for a description of the specific hazard.

WARNING

ELECTRIC SHOCK HAZARD

Improper grounding, setup, or usage of the system can cause electric shock.

• Turn off and disconnect power cord before servicing equipment.

• Use only grounded electrical outlets.

• Use only 3-wire extension cords.

• Ensure ground prongs are intact on sprayer and extension cords.

• Do not expose to rain. Store indoors.

TOXIC FLUID OR FUMES HAZARD

Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or

swallowed.

• Read MSDS’s to know the specific hazards of the fluids you are using.

• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.

PERSONAL PROTECTIVE EQUIPMENT

You must wear appropriate protective equipment when operating, servicing, or when in the operating

area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic

fumes, burns, and hearing loss. This equipment includes but is not limited to:

• Protective eyewear

• Clothing and respirator as recommended by the fluid and solvent manufacturer

•Gloves

• Hearing protection

SKIN INJECTION HAZARD

High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just

a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.

• Do not point gun at anyone or at any part of the body.

• Do not put your hand over the spray tip.

• Do not stop or deflect leaks with your hand, body, glove, or rag.

• Do not spray without tip guard and trigger guard installed.

• Engage trigger lock when not spraying.

• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,

checking, or servicing equipment.

Warnings

311392C 5

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent

fire and explosion:

• Use equipment only in well ventilated area.

• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop

cloths (potential static arc).

• Keep work area free of debris, including solvent, rags and gasoline.

• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes

are present.

• Ground all equipment in the work area. See Grounding instructions.

• Use only grounded hoses.

• Hold gun firmly to side of grounded pail when triggering into pail.

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment

until you identify and correct the problem.

• Keep a fire extinguisher in the work area.

PRESSURIZED ALUMINUM PARTS HAZARD

Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids

containing such solvents in pressurized aluminum equipment. Such use can cause serious chemical

reaction and equipment rupture, and result in death, serious injury, and property damage.

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• Do not operate the unit when fatigued or under the influence of drugs or alcohol.

• Do not exceed the maximum working pressure or temperature rating of the lowest rated system

component. See Technical Data in all equipment manuals.

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all

equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information

about your material, request MSDS forms from distributor or retailer.

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine Graco

(ASM) replacement parts only.

• Do not alter or modify equipment.

• Use equipment only for its intended purpose. Call your Graco distributor for information.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not kink or over bend hoses or use hoses to pull equipment.

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

MOVING PARTS HAZARD

Moving parts can pinch or amputate fingers and other body parts.

• Keep clear of moving parts.

• Do not operate equipment with protective guards or covers removed.

• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,

follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.

BURN HAZARD

Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe

burns, do not touch hot fluid or equipment. Wait until equipment/fluid has cooled completely.

WARNING

Pressure Relief Procedure

6311392C

Pressure Relief

Procedure

1. Select Park on Pump Control Switch.

2. Turn off feed pumps.

3. Trigger gun to relieve pressure.

4. Close gun inlet valves.

5. Close fluid supply inlet valves.

Flushing

• Flush out old fluid with new fluid, or flush out old

fluid with a compatible solvent, such as toluene,

naptha, or mineral spirts before introducing new

fluid.

• Use lowest possible pressure when flushing.

• To flush entire system, circulate through gun fluid

manifold (with manifold removed from gun).

• Always leave some type of fluid in system. Do not

use water.

Flush equipment only in a well-ventilated area. Do not

spray flammable fluids. Do not turn on heaters while

flushing with flammable solvents.

Only use flush solvents that are compatible with fluo-

roelastomer seals. Non-compatible solvents will dam-

age seals and cause hazardous conditions, such as

high pressure leaks and pressure switch failure.

Typical Installation

311392C 7

Typical Installation

FIG. 1: H-20/35 Proportioner Typical Installation

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Component Identification

8311392C

Component Identification

FIG. 2: Component Identification - Main Components

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126

Component Identification

311392C 9

1Hydraulic Pressure Control

Pressure control knob is factory-set (full clockwise)

to maximum rated hydraulic pressure. To decrease

hydraulic pressure, turn knob counterclockwise

(knob will stop after approximately 2 turns). To

return to maximum pressure, turn knob clockwise

until it stops. (See FIG. 3.)

2B- (Resin) Proportioning Pump

Draws in and dispenses a fixed volume of resin

material for delivery to mixing chamber of spray gun

or pour head.

3B- (Resin) Pressure Gauge

Indicates pressure in resin proportioning system.

4B- (Resin) Over-Pressure Safety Switch

Factory set to turn off hydraulic drive system when

resin proportioning pump exceeds safety switch

operating pressure limit. Restarts when pressure

drops below limit.

5A- (Isocyanate) Proportioning Pump

Draws in and dispenses a fixed volume of

isocyanate material for delivery to mixing chamber

of spray gun or pour head.

6A- (Isocyanate) Pressure Gauge

Indicates pressure in isocyanate proportioning

system.

7A- (Isocyanate Over-Pressure Safety Switch

Factory set to turn off hydraulic drive system when

isocyanate proportioning pump exceeds safety

switch operating pressure limit. Restarts when

pressure drops below limit.

8B- (Resin) Inlet Supply Ball Valve

Allows delivery of resin to proportioning unit.

9A- (Isocyanate) Inlet Supply Ball Valve

Allows delivery of isocyanate to proportioning unit.

10 Hydraulic Pressure Gauge

Indicates pressure in hydraulic drive system.

11 Hydraulic Tank Level Gauge

Shows level and temperature of hydraulic fluid in

tank.

12 Lube Pump System (Iso side only)

Continuously circulates pump lube to prevent

crystallization of isocyanate on pump shaft.

13 Hydraulic Directional Valve

Controls direction of hydraulic flow.

14 Hose Heat Connector

Connects power to heated hoses.

15 FTS Harness

Carries electrical signal from FTS sensor in

isocyanate hose to digital hose temperature

controller.

16 A- (Isocyanate) Primary Heater

Heats isocyanate to required dispensing

temperature.

17 B- (Resin) Primary Heater

(Located behind cover) Heats resin to required

dispensing temperature.

18 Inlet Pressure Gauge

(Both sides) Indicates chemical supply pressure at

proportioner inlet.

19 Inlet Temperature Gauge

(Both sides) Indicates chemical supply temperature

at proportioner inlet.

FIG. 3: Hydraulic Pressure Adjustment

4)'(4%.

,//3%.

Control

Knob

Component Identification

10 311392C

20 Main Power Disconnect

Controls power to all circuits. Must be ON for any

function of proportioning unit to operate. Lock

disconnect in OFF position during machine

maintenance.

21 Main Power Light (White)

Illuminates when main disconnect switch is in ON

position and control power transformer is

operational.

22 Control Power Switch

Controls120 VAC control power circuit. In ON

position, amber light within switch illuminates.

In OFF position, all machine operation stops

including motion and heating.

23 Emergency Stop Switch

Interrupts units control power circuit to stop all

motion and heating. Switch mechanically locks in

stop position. Turn switch clockwise to reset and

restore normal operation.

24 Motor Control Switch

Controls power to electric motor circuit. In ON

position, green light within switch illuminates and

hydraulic oil begins circulating.

25 Counter

Records cycle count of proportioning pumps. One

cycle equals two strokes (one in each direction).

FIG. 4: Component Identification - Front Controls

#/.42/,

0/7%2

29 31 33 27 21

2425

263230

Incoming power leads from main electrical source

remain energized when main power disconnect is off.

To fully de-energize the electrical console, switch off

and lock out incoming power at source.

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